Home / 13,330.16-18,395.60-7,666.00

Finding the Fourth Proportional to 13,330.16, 18,395.60 and 7,666.00

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Solution

The fourth proportional to 13,330.16, 18,395.60 and 7,666.00 is: 10,579.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.16 : 18,395.60 = 7,666.00 : x
  2. Step 2: Convert to fraction form
    13,330.16/18,395.60 = 7,666.00/x
  3. Step 3: Cross multiply
    13,330.16x = 18,395.60 × 7,666.00
  4. Step 4: Simplify right side
    13,330.16x = 141,020,658.58
  5. Step 5: Solve for x
    x = 141,020,658.58/13,330.16
  6. Step 6: Final answer
    x = 10,579.07

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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.