Home / 8,923.53-12,312.69-5,386.95

Finding the Fourth Proportional to 8,923.53, 12,312.69 and 5,386.95

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Solution

The fourth proportional to 8,923.53, 12,312.69 and 5,386.95 is: 7,432.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,923.53 : 12,312.69 = 5,386.95 : x
  2. Step 2: Convert to fraction form
    8,923.53/12,312.69 = 5,386.95/x
  3. Step 3: Cross multiply
    8,923.53x = 12,312.69 × 5,386.95
  4. Step 4: Simplify right side
    8,923.53x = 66,327,845.40
  5. Step 5: Solve for x
    x = 66,327,845.40/8,923.53
  6. Step 6: Final answer
    x = 7,432.92

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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.