Home / 13,818.08-19,068.30-7,530.32

Finding the Fourth Proportional to 13,818.08, 19,068.30 and 7,530.32

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Solution

The fourth proportional to 13,818.08, 19,068.30 and 7,530.32 is: 10,391.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.08 : 19,068.30 = 7,530.32 : x
  2. Step 2: Convert to fraction form
    13,818.08/19,068.30 = 7,530.32/x
  3. Step 3: Cross multiply
    13,818.08x = 19,068.30 × 7,530.32
  4. Step 4: Simplify right side
    13,818.08x = 143,590,400.86
  5. Step 5: Solve for x
    x = 143,590,400.86/13,818.08
  6. Step 6: Final answer
    x = 10,391.49

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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.