Home / 13,287.07-19,931.51-4,402.38

Finding the Fourth Proportional to 13,287.07, 19,931.51 and 4,402.38

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Solution

The fourth proportional to 13,287.07, 19,931.51 and 4,402.38 is: 6,603.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287.07 : 19,931.51 = 4,402.38 : x
  2. Step 2: Convert to fraction form
    13,287.07/19,931.51 = 4,402.38/x
  3. Step 3: Cross multiply
    13,287.07x = 19,931.51 × 4,402.38
  4. Step 4: Simplify right side
    13,287.07x = 87,746,080.99
  5. Step 5: Solve for x
    x = 87,746,080.99/13,287.07
  6. Step 6: Final answer
    x = 6,603.87

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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.