Home / 15,421.07-21,259.25-10,943.19

Finding the Fourth Proportional to 15,421.07, 21,259.25 and 10,943.19

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Solution

The fourth proportional to 15,421.07, 21,259.25 and 10,943.19 is: 15,086.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,421.07 : 21,259.25 = 10,943.19 : x
  2. Step 2: Convert to fraction form
    15,421.07/21,259.25 = 10,943.19/x
  3. Step 3: Cross multiply
    15,421.07x = 21,259.25 × 10,943.19
  4. Step 4: Simplify right side
    15,421.07x = 232,643,957.29
  5. Step 5: Solve for x
    x = 232,643,957.29/15,421.07
  6. Step 6: Final answer
    x = 15,086.11

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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.