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Finding the Fourth Proportional to 14,347.40, 21,521.10 and 9,973.40

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Solution

The fourth proportional to 14,347.40, 21,521.10 and 9,973.40 is: 14,960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,347.40 : 21,521.10 = 9,973.40 : x
  2. Step 2: Convert to fraction form
    14,347.40/21,521.10 = 9,973.40/x
  3. Step 3: Cross multiply
    14,347.40x = 21,521.10 × 9,973.40
  4. Step 4: Simplify right side
    14,347.40x = 214,638,538.74
  5. Step 5: Solve for x
    x = 214,638,538.74/14,347.40
  6. Step 6: Final answer
    x = 14,960.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.