Home / 11,700.02-16,146.06-6,984.20

Finding the Fourth Proportional to 11,700.02, 16,146.06 and 6,984.20

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Solution

The fourth proportional to 11,700.02, 16,146.06 and 6,984.20 is: 9,638.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,700.02 : 16,146.06 = 6,984.20 : x
  2. Step 2: Convert to fraction form
    11,700.02/16,146.06 = 6,984.20/x
  3. Step 3: Cross multiply
    11,700.02x = 16,146.06 × 6,984.20
  4. Step 4: Simplify right side
    11,700.02x = 112,767,312.25
  5. Step 5: Solve for x
    x = 112,767,312.25/11,700.02
  6. Step 6: Final answer
    x = 9,638.22

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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.