Home / 15,419.47-23,130.65-4,326.11

Finding the Fourth Proportional to 15,419.47, 23,130.65 and 4,326.11

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Solution

The fourth proportional to 15,419.47, 23,130.65 and 4,326.11 is: 6,489.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419.47 : 23,130.65 = 4,326.11 : x
  2. Step 2: Convert to fraction form
    15,419.47/23,130.65 = 4,326.11/x
  3. Step 3: Cross multiply
    15,419.47x = 23,130.65 × 4,326.11
  4. Step 4: Simplify right side
    15,419.47x = 100,065,718.17
  5. Step 5: Solve for x
    x = 100,065,718.17/15,419.47
  6. Step 6: Final answer
    x = 6,489.57

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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.