Home / 11,587.02-15,979.14-7,810.80

Finding the Fourth Proportional to 11,587.02, 15,979.14 and 7,810.80

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Solution

The fourth proportional to 11,587.02, 15,979.14 and 7,810.80 is: 10,771.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,587.02 : 15,979.14 = 7,810.80 : x
  2. Step 2: Convert to fraction form
    11,587.02/15,979.14 = 7,810.80/x
  3. Step 3: Cross multiply
    11,587.02x = 15,979.14 × 7,810.80
  4. Step 4: Simplify right side
    11,587.02x = 124,809,866.71
  5. Step 5: Solve for x
    x = 124,809,866.71/11,587.02
  6. Step 6: Final answer
    x = 10,771.52

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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.