Home / 8,962.34-12,341.43-6,440.00

Finding the Fourth Proportional to 8,962.34, 12,341.43 and 6,440.00

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Solution

The fourth proportional to 8,962.34, 12,341.43 and 6,440.00 is: 8,868.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,962.34 : 12,341.43 = 6,440.00 : x
  2. Step 2: Convert to fraction form
    8,962.34/12,341.43 = 6,440.00/x
  3. Step 3: Cross multiply
    8,962.34x = 12,341.43 × 6,440.00
  4. Step 4: Simplify right side
    8,962.34x = 79,478,747.49
  5. Step 5: Solve for x
    x = 79,478,747.49/8,962.34
  6. Step 6: Final answer
    x = 8,868.08

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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.