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Finding the Fourth Proportional to 15,437.63, 21,303.48 and 9,064.11

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Solution

The fourth proportional to 15,437.63, 21,303.48 and 9,064.11 is: 12,508.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,437.63 : 21,303.48 = 9,064.11 : x
  2. Step 2: Convert to fraction form
    15,437.63/21,303.48 = 9,064.11/x
  3. Step 3: Cross multiply
    15,437.63x = 21,303.48 × 9,064.11
  4. Step 4: Simplify right side
    15,437.63x = 193,097,086.10
  5. Step 5: Solve for x
    x = 193,097,086.10/15,437.63
  6. Step 6: Final answer
    x = 12,508.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.