Home / 19,002.47-28,509.85-9,140.46

Finding the Fourth Proportional to 19,002.47, 28,509.85 and 9,140.46

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Solution

The fourth proportional to 19,002.47, 28,509.85 and 9,140.46 is: 13,713.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,002.47 : 28,509.85 = 9,140.46 : x
  2. Step 2: Convert to fraction form
    19,002.47/28,509.85 = 9,140.46/x
  3. Step 3: Cross multiply
    19,002.47x = 28,509.85 × 9,140.46
  4. Step 4: Simplify right side
    19,002.47x = 260,592,955.28
  5. Step 5: Solve for x
    x = 260,592,955.28/19,002.47
  6. Step 6: Final answer
    x = 13,713.64

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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.