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Finding the Fourth Proportional to 15,248.40, 21,041.40 and 8,534.16

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Solution

The fourth proportional to 15,248.40, 21,041.40 and 8,534.16 is: 11,776.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,248.40 : 21,041.40 = 8,534.16 : x
  2. Step 2: Convert to fraction form
    15,248.40/21,041.40 = 8,534.16/x
  3. Step 3: Cross multiply
    15,248.40x = 21,041.40 × 8,534.16
  4. Step 4: Simplify right side
    15,248.40x = 179,570,674.22
  5. Step 5: Solve for x
    x = 179,570,674.22/15,248.40
  6. Step 6: Final answer
    x = 11,776.36

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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.