Home / 13,036.08-17,988.63-7,730.04

Finding the Fourth Proportional to 13,036.08, 17,988.63 and 7,730.04

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Solution

The fourth proportional to 13,036.08, 17,988.63 and 7,730.04 is: 10,666.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,036.08 : 17,988.63 = 7,730.04 : x
  2. Step 2: Convert to fraction form
    13,036.08/17,988.63 = 7,730.04/x
  3. Step 3: Cross multiply
    13,036.08x = 17,988.63 × 7,730.04
  4. Step 4: Simplify right side
    13,036.08x = 139,052,829.45
  5. Step 5: Solve for x
    x = 139,052,829.45/13,036.08
  6. Step 6: Final answer
    x = 10,666.77

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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.