Home / 10,899.95-15,041.49-6,423.89

Finding the Fourth Proportional to 10,899.95, 15,041.49 and 6,423.89

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Solution

The fourth proportional to 10,899.95, 15,041.49 and 6,423.89 is: 8,864.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,899.95 : 15,041.49 = 6,423.89 : x
  2. Step 2: Convert to fraction form
    10,899.95/15,041.49 = 6,423.89/x
  3. Step 3: Cross multiply
    10,899.95x = 15,041.49 × 6,423.89
  4. Step 4: Simplify right side
    10,899.95x = 96,624,801.99
  5. Step 5: Solve for x
    x = 96,624,801.99/10,899.95
  6. Step 6: Final answer
    x = 8,864.71

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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.