Home / 10,870.25-15,000.21-6,089.36

Finding the Fourth Proportional to 10,870.25, 15,000.21 and 6,089.36

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Solution

The fourth proportional to 10,870.25, 15,000.21 and 6,089.36 is: 8,402.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,870.25 : 15,000.21 = 6,089.36 : x
  2. Step 2: Convert to fraction form
    10,870.25/15,000.21 = 6,089.36/x
  3. Step 3: Cross multiply
    10,870.25x = 15,000.21 × 6,089.36
  4. Step 4: Simplify right side
    10,870.25x = 91,341,603.76
  5. Step 5: Solve for x
    x = 91,341,603.76/10,870.25
  6. Step 6: Final answer
    x = 8,402.90

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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.