Home / 9,107.79-12,569.63-5,330.74

Finding the Fourth Proportional to 9,107.79, 12,569.63 and 5,330.74

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Solution

The fourth proportional to 9,107.79, 12,569.63 and 5,330.74 is: 7,356.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,107.79 : 12,569.63 = 5,330.74 : x
  2. Step 2: Convert to fraction form
    9,107.79/12,569.63 = 5,330.74/x
  3. Step 3: Cross multiply
    9,107.79x = 12,569.63 × 5,330.74
  4. Step 4: Simplify right side
    9,107.79x = 67,005,389.55
  5. Step 5: Solve for x
    x = 67,005,389.55/9,107.79
  6. Step 6: Final answer
    x = 7,356.93

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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.