Home / 9,130.92-12,599.97-5,152.40

Finding the Fourth Proportional to 9,130.92, 12,599.97 and 5,152.40

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Solution

The fourth proportional to 9,130.92, 12,599.97 and 5,152.40 is: 7,109.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,130.92 : 12,599.97 = 5,152.40 : x
  2. Step 2: Convert to fraction form
    9,130.92/12,599.97 = 5,152.40/x
  3. Step 3: Cross multiply
    9,130.92x = 12,599.97 × 5,152.40
  4. Step 4: Simplify right side
    9,130.92x = 64,920,079.34
  5. Step 5: Solve for x
    x = 64,920,079.34/9,130.92
  6. Step 6: Final answer
    x = 7,109.92

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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.