Home / 13,988.56-19,303.32-7,699.72

Finding the Fourth Proportional to 13,988.56, 19,303.32 and 7,699.72

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Solution

The fourth proportional to 13,988.56, 19,303.32 and 7,699.72 is: 10,625.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.56 : 19,303.32 = 7,699.72 : x
  2. Step 2: Convert to fraction form
    13,988.56/19,303.32 = 7,699.72/x
  3. Step 3: Cross multiply
    13,988.56x = 19,303.32 × 7,699.72
  4. Step 4: Simplify right side
    13,988.56x = 148,630,159.07
  5. Step 5: Solve for x
    x = 148,630,159.07/13,988.56
  6. Step 6: Final answer
    x = 10,625.12

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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.