Home / 8,890.40-13,302.77-7,315.76

Finding the Fourth Proportional to 8,890.40, 13,302.77 and 7,315.76

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Solution

The fourth proportional to 8,890.40, 13,302.77 and 7,315.76 is: 10,946.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890.40 : 13,302.77 = 7,315.76 : x
  2. Step 2: Convert to fraction form
    8,890.40/13,302.77 = 7,315.76/x
  3. Step 3: Cross multiply
    8,890.40x = 13,302.77 × 7,315.76
  4. Step 4: Simplify right side
    8,890.40x = 97,319,872.66
  5. Step 5: Solve for x
    x = 97,319,872.66/8,890.40
  6. Step 6: Final answer
    x = 10,946.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.