Home / 9,937.47-13,712.60-5,689.67

Finding the Fourth Proportional to 9,937.47, 13,712.60 and 5,689.67

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Solution

The fourth proportional to 9,937.47, 13,712.60 and 5,689.67 is: 7,851.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,937.47 : 13,712.60 = 5,689.67 : x
  2. Step 2: Convert to fraction form
    9,937.47/13,712.60 = 5,689.67/x
  3. Step 3: Cross multiply
    9,937.47x = 13,712.60 × 5,689.67
  4. Step 4: Simplify right side
    9,937.47x = 78,020,071.83
  5. Step 5: Solve for x
    x = 78,020,071.83/9,937.47
  6. Step 6: Final answer
    x = 7,851.10

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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.