Home / 7,721.02-10,656.14-4,888.65

Finding the Fourth Proportional to 7,721.02, 10,656.14 and 4,888.65

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Solution

The fourth proportional to 7,721.02, 10,656.14 and 4,888.65 is: 6,747.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.02 : 10,656.14 = 4,888.65 : x
  2. Step 2: Convert to fraction form
    7,721.02/10,656.14 = 4,888.65/x
  3. Step 3: Cross multiply
    7,721.02x = 10,656.14 × 4,888.65
  4. Step 4: Simplify right side
    7,721.02x = 52,094,191.21
  5. Step 5: Solve for x
    x = 52,094,191.21/7,721.02
  6. Step 6: Final answer
    x = 6,747.06

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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.