Home / 7,962.90-10,988.80-4,426.12

Finding the Fourth Proportional to 7,962.90, 10,988.80 and 4,426.12

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Solution

The fourth proportional to 7,962.90, 10,988.80 and 4,426.12 is: 6,108.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,962.90 : 10,988.80 = 4,426.12 : x
  2. Step 2: Convert to fraction form
    7,962.90/10,988.80 = 4,426.12/x
  3. Step 3: Cross multiply
    7,962.90x = 10,988.80 × 4,426.12
  4. Step 4: Simplify right side
    7,962.90x = 48,637,692.51
  5. Step 5: Solve for x
    x = 48,637,692.51/7,962.90
  6. Step 6: Final answer
    x = 6,108.04

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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.