Home / 13,307.47-18,364.42-7,339.34

Finding the Fourth Proportional to 13,307.47, 18,364.42 and 7,339.34

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Solution

The fourth proportional to 13,307.47, 18,364.42 and 7,339.34 is: 10,128.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.47 : 18,364.42 = 7,339.34 : x
  2. Step 2: Convert to fraction form
    13,307.47/18,364.42 = 7,339.34/x
  3. Step 3: Cross multiply
    13,307.47x = 18,364.42 × 7,339.34
  4. Step 4: Simplify right side
    13,307.47x = 134,782,777.37
  5. Step 5: Solve for x
    x = 134,782,777.37/13,307.47
  6. Step 6: Final answer
    x = 10,128.36

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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.