Home / 10,289.80-15,423.90-4,047.40

Finding the Fourth Proportional to 10,289.80, 15,423.90 and 4,047.40

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Solution

The fourth proportional to 10,289.80, 15,423.90 and 4,047.40 is: 6,066.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.80 : 15,423.90 = 4,047.40 : x
  2. Step 2: Convert to fraction form
    10,289.80/15,423.90 = 4,047.40/x
  3. Step 3: Cross multiply
    10,289.80x = 15,423.90 × 4,047.40
  4. Step 4: Simplify right side
    10,289.80x = 62,426,692.86
  5. Step 5: Solve for x
    x = 62,426,692.86/10,289.80
  6. Step 6: Final answer
    x = 6,066.85

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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.