Home / 10,897.30-15,038.55-6,117.10

Finding the Fourth Proportional to 10,897.30, 15,038.55 and 6,117.10

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Solution

The fourth proportional to 10,897.30, 15,038.55 and 6,117.10 is: 8,441.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,897.30 : 15,038.55 = 6,117.10 : x
  2. Step 2: Convert to fraction form
    10,897.30/15,038.55 = 6,117.10/x
  3. Step 3: Cross multiply
    10,897.30x = 15,038.55 × 6,117.10
  4. Step 4: Simplify right side
    10,897.30x = 91,992,314.21
  5. Step 5: Solve for x
    x = 91,992,314.21/10,897.30
  6. Step 6: Final answer
    x = 8,441.75

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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.