Home / 8,900.18-12,281.03-5,543.13

Finding the Fourth Proportional to 8,900.18, 12,281.03 and 5,543.13

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Solution

The fourth proportional to 8,900.18, 12,281.03 and 5,543.13 is: 7,648.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.18 : 12,281.03 = 5,543.13 : x
  2. Step 2: Convert to fraction form
    8,900.18/12,281.03 = 5,543.13/x
  3. Step 3: Cross multiply
    8,900.18x = 12,281.03 × 5,543.13
  4. Step 4: Simplify right side
    8,900.18x = 68,075,392.74
  5. Step 5: Solve for x
    x = 68,075,392.74/8,900.18
  6. Step 6: Final answer
    x = 7,648.77

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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.