Home / 13,070.84-18,037.72-7,102.51

Finding the Fourth Proportional to 13,070.84, 18,037.72 and 7,102.51

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Solution

The fourth proportional to 13,070.84, 18,037.72 and 7,102.51 is: 9,801.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070.84 : 18,037.72 = 7,102.51 : x
  2. Step 2: Convert to fraction form
    13,070.84/18,037.72 = 7,102.51/x
  3. Step 3: Cross multiply
    13,070.84x = 18,037.72 × 7,102.51
  4. Step 4: Simplify right side
    13,070.84x = 128,113,050.46
  5. Step 5: Solve for x
    x = 128,113,050.46/13,070.84
  6. Step 6: Final answer
    x = 9,801.44

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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.