Home / 19,986.24-29,985.57-7,507.38

Finding the Fourth Proportional to 19,986.24, 29,985.57 and 7,507.38

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Solution

The fourth proportional to 19,986.24, 29,985.57 and 7,507.38 is: 11,263.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,986.24 : 29,985.57 = 7,507.38 : x
  2. Step 2: Convert to fraction form
    19,986.24/29,985.57 = 7,507.38/x
  3. Step 3: Cross multiply
    19,986.24x = 29,985.57 × 7,507.38
  4. Step 4: Simplify right side
    19,986.24x = 225,113,068.51
  5. Step 5: Solve for x
    x = 225,113,068.51/19,986.24
  6. Step 6: Final answer
    x = 11,263.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.