Home / 10,870.40-15,002.08-6,155.52

Finding the Fourth Proportional to 10,870.40, 15,002.08 and 6,155.52

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Solution

The fourth proportional to 10,870.40, 15,002.08 and 6,155.52 is: 8,495.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,870.40 : 15,002.08 = 6,155.52 : x
  2. Step 2: Convert to fraction form
    10,870.40/15,002.08 = 6,155.52/x
  3. Step 3: Cross multiply
    10,870.40x = 15,002.08 × 6,155.52
  4. Step 4: Simplify right side
    10,870.40x = 92,345,603.48
  5. Step 5: Solve for x
    x = 92,345,603.48/10,870.40
  6. Step 6: Final answer
    x = 8,495.14

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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.